Interior alignment light for open magnet MRI
US6294915A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1999 |
| Grant date | Sep 25, 2001 |
| Priority date | — |
| Expiry date | Mar 23, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3806
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A patient alignment device is disclosed for use in open magnet MRI having a movable patient table to move a patient within the open magnet MRI in order to position a desired patient scan area accurately within the field-of-view (FOV) of the open magnet MRI. A first alignment light is placed on the outer periphery of the upper magnetic structure of the open MRI to emit a light beam in longitudinal alignment with a center point of the FOV. A second alignment light is positioned to emit a second light beam downwardly from the upper magnetic structure to indicate an interior reference point of the FOV. The second alignment light is then used to reposition a patient within the open magnet MRI without having to withdraw the patient from the open magnet MRI.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.